Warner Bros. Interactive has delayed “Batman: Arkham Knight,” moving Rocksteady Studios’ final installment of its “Arkham” franchise from October to an undetermined date in 2015.

But the gamemaker won’t be left without a Batman game this fall, considering it has “Lego Batman 3: Beyond Gotham” scheduled from TT Games.

The Lego videogame franchise has sold more than 100 million units worldwide.

In “Lego Batman 3” (see below), Batman joins forces with the super heroes of the DC Comics Universe and blasts off to outer space to stop the evil Brainiac from destroying Earth.

Players will unlock more than 150 unique characters from the DC Comics universe, including members of the Justice League and villains Killer Croc and Solomon Grundy. Game also will allow players to explore iconic locations such as the Hall of Justice, the Batcave and the Justice League Watchtower.

In “Arkham Knight” (see above), Rocksteady is expanding Gotham City, and improving the visuals to benefit from the power of next-generation consoles from Sony and Microsoft. The game will also feature more gadgets and let players drive the Batmobile, largely missing from previous installments.

Warner Bros. launched the “Arkham” franchise with “Batman: Arkham Asylum” in 2009, followed by “Batman: Arkham City,” in 2011, and were notable for their dark, gritty approach to the DC character, offering those games to an older audience than the more family friendly Lego titles.